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• t4 outside air sensor temperature
• cS1 set-point 1 in cooling mode
• cS2 set-point 2 (Eco) in cooling mode
• CHC compressor operating hours
• HS1 set-point 1 in heating mode
• HS2 set-point 2 (Eco) in heating mode
To view the above temperatures/set-points, proceed as follows:
• Press ey5
, to view t1 on the display
• Press ey1
or ey2 , to view the other mnemonic symbols on the display
• Press ey6
, to view the measured temperature/set-point value
• Press ey5
to quit temperature/set mode
3.2.3 User menu
The following functions modiable from the user menu can also be activated on the internal unit’s control panel:
• CLOCK
To set the clock, modify parameter hrS for the hours and parameter in for the minutes.
• TIMER
With this function the system can be set to switch on and off once a day.
Parameter ti1 activates the function, parameter StA sets the start time and parameter Sto sets the system shutdown time.
• NIGHT-TIME MODE
System yield and noise are limited in night-time mode.
The function is enabled with parameter ncL1, the mode start time with parameter nSt and the end time with parameter nSP.
• COOLING SET-POINT
The thermostat can be set for two different water cooling temperatures, using parameters CS1 and CS2.
Temperature CS2 is used by activating Eco mode in cooling.
• HEATING SET-POINT
The thermostat can be set for two different water heating temperatures, using parameters HS1 and HS2.
Temperature HS2 is used by activating Eco mode in heating.
• DOMESTIC WATER SET-POINT
The thermostat can be set for one water heating temperature, using parameter HS3.
• CLIMATE CURVES
To optimise energy saving, two climate curves are available: one for heating and one for cooling. This function enables the
water temperature to be adjusted to the outside air temperature and therefore to the heating load, optimising system energy
saving.
The climate curves must be set on the system by authorised personnel, modifying certain parameters in the service menu.
The user can enable the curve in heating by setting parameter Hcc1; with Hcc0 the curve is disabled and the system runs
with set-points Hs1 and Hs2.
The user can enable the curve in cooling by setting parameter Ccc1; with Ccc0 the curve is disabled and the system runs
with set-points Cs1 and Cs2.
3.3 SETTING THE USER MENU PARAMETERS
Use button E4
to access the user menu, pressing it displays Usr for User.
Once the user menu is selected, press E6
, to enter the menu and display the rst parameter, then use the up and
down arrows to view all the parameters in the user menu. Press the info/set button again to view the value of the parameter; on
pressing info/set again for three seconds the value on the display ashes and can be modied using the arrows ey1
and
ey2
, press to conrm.
Press menu to exit and the arrows to select another parameter.
Proceed in the same way for the other parameters.
Quit the menu automatically by not pressing any buttons for 60 seconds or by pressing both arrows ey1
and ey2 simultaneously.
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